Land | 20 | |
Ocean / Sea | 7 | |
Weather | 6 | |
Surface Waters / Wetlands | 5 | |
Air | 4 | |
Plants / Kelp | 4 | |
Land Mammals | 2 | |
Birds | 1 | |
Fish | 1 | |
Insects | 1 | |
Invertebrates | 1 | |
Marine Mammals | 1 |
Buildings | 8 | |
Safety | 8 | |
Transportation | 5 | |
Human Health | 4 | |
Agriculture | 2 | |
Displacement | 2 | |
Sanitation | 2 | |
Cultural Impact | 1 | |
Economic Impact | 1 |
2 | 4 | 1 | 1 | 6 | 1 | 1 | 3 |
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1 | 3 | 1 | 3 | 1 | 3 | 2 | 2 | 3 |
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FALL | 7 | |
SPRING | 4 | |
SUMMER | 4 | |
WINTER | 4 |
United States | 11 | |
Canada | 2 | |
Russia | 1 |